Which consequence occurs when moisture permeates a Mughal garden's sandstone featuring pietra dura?

💡 Explanation

Differential expansion between the sandstone and pietra dura inlay leads to fracturing because each material possesses different coefficients of thermal expansion; therefore, cyclical moisture and temperature changes cause stress and cracking, rather than resonance shifts or binder degradation.

• In historic pietra dura mosaics subjected to high humidity, which outcome accelerates damage?
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• Which consequence arises from a reduction of aqueduct slope?
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